(born March 11, 1956) is an American voice actor and voice director, known for his roles in numerous animated television series and films. He received a Daytime Emmy Award for Outstanding Performer in an Animated Programand three Annie Awards for his role as both Yakko Dr. Scratchansniff and Pinky in the Animaniacs franchise. His other voice roles include: Hadji in The New Adventures of Jonny Quest (1986–1987) and The Real Adventures of Jonny Quest (1996–1997); Raphaelin Teenage Mutant Ninja Turtles(1987–1996); Donatello in Teenage Mutant Ninja Turtles (2012–2017); P.J. Pete in Goof Troop (1992), Young Hathi from Disney’s Jungle Cubs (1996), A Goofy Movie (1995), and An Extremely Goofy Movie (2000); Carl Wheezer in Jimmy Neutron: Boy Genius (2001) and its TV series(2002–2006); Jaq in Cinderella II: Dreams Come True (2002) and Cinderella III: A Twist in Time (2007); and Mac in The Looney Tunes Show (2011–2013) and Looney Tunes: Rabbits Run (2015).